I think the contamination from years and years ago is still a threat to this river. I mean like I said, I wouldn't eat the fish out of it myself.
- Local resident, 2013
Howards Bay is located next to Connor's Point in Superior, WI and is bisected by Interstate 535. The site is in the lower estuary of the St. Louis River, which is the largest Great Lakes Area of Concern in the United States.
Sediment to be remediated: 83,000 cubic yards
Contaminants: Lead, PAHs, mercury, and tributyltin
Method: Dredging and sand cover
Partners: U.S. Environmental Protection Agency, Wisconsin Department of Natural Resources, and Fraser Shipyards
Cost: To be determined in the design stage
Note: The remedy will include a sand cover.
Location of Contaminants
A completed design may be completed as early as 2019.
The contaminants in Howards Bay are somewhat scattered due to the different uses the bay has seen over time. The diagrams below show where the contaminants remain, as well as their concentrations.
The project is currently in the design stage. More technical information will be provided once available.
- Dredged Material Management Options Evaluation (PDF, 1p, 206KB) January 2017
- Howards Bay Contaminants Fact Sheet (PDF, 1p, 1.1MB) January 2017
- Public Meeting Brochure (PDF, 2p, 1.1MB) January 2017
- Focused Feasibility Study for Sediment Cleanup in Howards Bay (PDF, 116p, 38.5MB) July 2015